BioStacks
Optimum Nutrition

Glutamine Capsules

2 Capsules · 120 servings · $0.17/serving

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Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.

Ingredients (1)

L-Glutamine

20%

Dose

1000 mg

Target

5000–15000 mg

Form

—

Other Ingredients (2)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

How to Take It

Take it anytime

Take between meals — it competes with other amino acids for absorption.

On an empty stomach

On the label

Consume 2 capsules. Intended for use in healthy adults and as part of healthy, balanced diet and exercise program.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$20.39

$10$20$50

Near the median of 74 glutamine supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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